Engine-Driven Tool Dust Removal With Belt-Driven Fan Suction
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Solution Overview
Problem
Existing engine-driven tools, such as power cutters, face challenges in effectively capturing and removing dust generated during cutting operations, which can harm health and pollute the environment, and current dust removal systems are often complex and inefficient.
Innovation Solution
The design incorporates a rotatable work tool with a shielding cover and self-adjusting swiveling parts that pivot around specific axes to maximize dust collection, connected to a fan arrangement and dust hose system, allowing for efficient dust removal and minimization of dust release into the air.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a water supply system is used to suppress dust, then dust release into air is reduced, but water consumption increases and cleanup requirements arise
Solution Approach 1:
The patent uses a vacuum system with a fan to create negative pressure that actively sucks dust particles into a collection container through a dust hose. This pneumatic approach replaces the hydraulic water suppression method, achieving dust removal without water consumption and associated cleanup requirements
2Object-affected harmful factors
If an integrated fan with transmission arrangement is used for dust removal, then dust can be conveyed to remote container, but device complexity increases
Solution Approach 1:
The patent integrates the fan directly into the shielding cover structure, eliminating the need for separate transmission arrangements with belts or gears. The fan is positioned to directly receive dust particles from the cutting zone through the dust channel, merging the dust collection function with the existing shielding structure and reducing overall system complexity
Solution Approach 2:
The dust removal function is extracted as a separate module (fan with dust hose) that can be independently positioned and configured. The fan is taken out from complex transmission systems and directly coupled to the dust collection point, simplifying the power transfer mechanism while maintaining effective dust removal
3Object-affected harmful factors
If shielding cover is used to collect dust, then dust containment is improved, but dust collection efficiency decreases without proper airflow
Solution Approach 1:
The patent incorporates a fan that creates a controlled airflow pattern within the shielding cover. This pneumatic system generates negative pressure that actively draws dust particles from the cutting zone through the dust channel into the collection container, significantly improving dust collection efficiency compared to passive shielding alone
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a reliable and versatile dust removal system that effectively captures dust, reducing its release into the surrounding air and improving operational safety and environmental cleanliness.
Implementation Method 1
a fan arrangement that is arranged to convey air from the dust channel into the dust container via the dust hose
Data Source
AI summary
The present disclosure relates to engine-driven tool (1) comprising a rotatable work tool (2) and an engine (4) for propelling a first driving pulley (28) via a clutch wheel (30) comprised in a power transferring unit (27) and having an outer edge. The first driving pulley (28) and the clutch wheel (30) arc arranged to rotate around a common driving axis (38). The power transferring unit (27) comprises an endless drive belt (9) that is arranged propel the rotatable work tool (2) when the first driving pulley (28) is propelled. A fan arrangement (13) is arranged to convey air front a dust channel (11) formed between a shielding cover (8) and the rotatable work tool (2), and comprises a fan turbine (26) that is connected to a fan pulley (29) connected to the drive belt (9) is arranged to propel the fan pulley (29). A first overlap line (50) extends along the outer edge (52) of the clutch wheel (30), perpendicular to the extension of the common driving axis (38), the first overlap line (50) further extending via the fan turbine (26).